Interesting. The 6 house batteries will support a large alternator and inverter. It sounds like your coach may have started out with LP furnaces and then during production been changed to all-electric OR someone added the LP furnaces and then determined that the conversion to add a propane tank was going to be a BIG job. My guess would be the former. Newell installed 68 gallon propane tanks during the early 90's and they were put in an open bay (no floor). At any rate, with enough alternator power (the new Newell's use a 400 amp alternator to recharge the 6+2 8-D batteries), you could easily support a larger inverter. The new Newell's use a pair of 2800 watt Outback inverters.
As to the switch above the microwave, I suspect it is to select either the upper or lower 12 volt water pumps. Mine is marked 'Pump Select' and is next to the Water Pump off-on switch.
|